How to solve the problem of burrs in the production of flat washer? +15 years of focus on flat washer manufacturers to tell you

In the actual production process, flat washer factories often encounter burrs on flat washers, which affects quality and efficiency, increases defects, and reduces production efficiency. So how to solve the problem of burrs during production? Xiaoshuo sorted out a few points, and we will understand with you: 1. The selection of blanking gap. The selection of blanking gap is the main factor that affects the burr problem. If the gap is too small or too large, it will cause the burr problem. Generally speaking, the gap value of the cutting edge is selected differently according to the thickness of the plate. 2. Principles for selecting mold materials. The trimming block needs to have sufficient strength and wear resistance to ensure mass production. The material of the tool block is generally Cr12MoV, flame quenching (air cooling) is carried out before finishing, and the theoretical hardness value after heat treatment is 53~57HRC. When the hardness value is insufficient, the production process is prone to wear and the gap value is too large, and when the hardness value is too large, the toughness of the tool block decreases, and the finishing process is prone to chipping and serrated cutting edges. 3. Choice of trimming angle. When there is a certain angle between the cutting edges of the upper and lower die, the upper crack of the plate is in the vertical direction, and the lower crack is the direction perpendicular to the plane of the plate. As a result, the upper and lower cracks cannot be overlapped, and burrs are easily generated. When the trimming angle is too large, choose to increase the oblique wedge to ensure vertical cutting; if the mold structure cannot increase the oblique wedge, make a local platform at the angle cutting edge. The width of the platform is generally 3 times the material thickness. The gap needs to tend to 0, so as to ensure that the upper and lower cracks are in the vertical direction during the trimming process. Hardware, a flat washer factory dedicated for 15 years, a 5000 square meter production workshop, hundreds of precision processing and production equipment, more than 20 Ru0026D and design engineers, the accuracy of metal flat washers can reach 0.01mm, the next-day production capacity of 3 million punches, 16 quality The inspection starts from the raw materials and strictly controls each layer. Can quickly solve the problems of time, accuracy and quality for you!